Improvement in steam-g-egerators



dotted tctet we entre.

' Letters Patent No. 95,532, dated October 5, 1869.

IMPROVEMENT IN STEAM-GENERATORS.

The Schedule referred'to in these Letters Patent and making part of thesame.

To all whom it may concern Be it knownthat I, SAMUEL STANTON, of Newburg, in the county of Orange, and -State of N ew York, have inventeda new and useful Improvement in Generating Steam in Steam-Boilers; andthat the following deseription, taken in connection with theaccompanying drawings, hereinafter referred to, forms a full and, exactspecification of the same, wherein I have set forth the nature andprinciples of my said improvement, by which my invention may `bedistinguished from all others of a similar class, together with suchparts as I claim, and desire to lhave secured to me by Letters Patent. l

This invention has for its object economy in fuel in generating steam,and consistsin inducting heated air into the boiler through a perforatedtube, which passes into the boiler below the water-level, and rapidlyheats the water, and-greatly assists in keeping it up to theboiling-point, and, at the same time, keeps the water supplied'withatmospheric airto compensate for that which is gradually expelled by theprocess of boiling.

In the accompanying sheet of drawings- Figure l represents a front Viewof a steam-boiler f provided with thy invention.

l Figure 2, a longitudinal vertical section of the same,

taken in the line :c x, iig'. 1. Similar letters' of reference indicatelike parts.

A represents a lsteam-boiler, and B, the furnace thereof, constructedand arranged in the usual or in any proper manner; and

C is an air-pipe, which is tted in the rear part of the furnace, and isof serpentine form at that part, and passes through the rear end of theboiler, below the water-level, and extends to the frontend of the same,the portion of the pipe within the boiler being perforated with smallholes, a.

'The pipe C passes through the side of the furnace,

and is provided with a check-valve, and air is forced through the pipe,into the boiler, by means of a suitable pump, t-he air being heated inits passage through the sinuous portion ofthe pipe, and forced, thusheated,

through the perforations a, into the water in the boiler, rapidlybringing the water up to the boiling-point, and

greatly assisting in keeping it up to that point, and, n

at the same time, keeping the water supplied with atmospheric air, whichis continually being expelled by the boiling-process, and the loss ofwhich' requires a greater degree of heat to keep the water at theboilter-level, as herein described, for the purpose specitied.

SAMUEL STANTON.

Witnesses: n

JOHN W. LITTLE, PETOB. TAYLOR.

